[Python] Why am I getting these errors using py2app?

Below is what has appeared as an error to me after typing in python setup.py py2app. I'm on a mac. I've spent hours reading tutorials, making sure both py2app and pyapplet were set up, and following the tutorials, I don't know what's wrong. Here's the error:

running py2app
Traceback (most recent call last):
File "setup.py", line 18, in <module>
setup_requires=['py2app'],
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/core.py", line 152, in setup
dist.run_commands()
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/dist.py", line 975, in run_commands
self.run_command(cmd)
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/dist.py", line 995, in run_command
cmd_obj.run()
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/py2app-0.7.3-py2.6.egg/py2app/build_app.py", line 502, in run
if sysconfig.get_config_var('PYTHONFRAMEWORK') is None:
AttributeError: 'NoneType' object has no attribute 'get_config_var'


And here is my setup.py

"""
This is a setup.py script generated by py2applet

Usage:
python setup.py py2app
"""

from setuptools import setup

APP = ['kradio.py']
DATA_FILES = []
OPTIONS = {'argv_emulation': True}

setup(
app=APP,
data_files=DATA_FILES,
options={'py2app': OPTIONS},
setup_requires=['py2app'],
)


Both the program and the setup are located in the user directory.

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